Father-of-three Matthew revealed the film had been something of a passion project for him.

"I've been trying to get it made for the past four years so it's been a labour of love and I'm really happy how it's turned out," said the star.

"It's an important project for me. Ron Woodroof was an incredible man, a contradiction in his own terms who took on a death sentence and made a difference that has reverberated around the medical industry and the world. His story has fascinated me for years."

The Dallas Buyers Club also stars Jared Leto and Jennifer Garner and was directed by Jean-Marc Vallee.